Scandium perrhenate

Scandium perrhenate
Names
	IUPAC name Scandium perrhenate(VI)
	Other names Scandium(III) perrhenate; Scandium(III) perrhenate(VI)
Identifiers
CAS Number	anhydrous: 86498-49-9 ; trihydrate: 200715-49-7 ;
3D model (JSmol)	anhydrous: Interactive image; trihydrate: Interactive image;
	InChI anhydrous: InChI=1S/12O.3Re.Sc/q;;;;;;;;;3-1;;;;+3 Key: DQDFVDYBLKBMNM-UHFFFAOYSA-N; trihydrate: InChI=1S/3H2O.12O.3Re.Sc/h31H2;;;;;;;;;;;;;;;;/q;;;;;;;;;;;;3*-1;;;;+3 Key: OSEDDTYZDXOQRN-UHFFFAOYSA-N;
	SMILES anhydrous: [Sc+3].O=[Re](=O)(=O)[O-].O=[Re](=O)(=O)[O-].O=[Re](=O)(=O)[O-]; trihydrate: [Sc+3].O=[Re](=O)(=O)[O-].O=[Re](=O)(=O)[O-].O=[Re](=O)(=O)[O-].O.O.O;
Properties
Chemical formula	Sc(ReO4)3
Molar mass	795.577 (anhydrous); 813.593 (monohydrate); 849.625 (trihydrate)
Melting point	735°C
Solubility in water	very soluble
Related compounds
Other anions	Scandium nitrate; Scandium perchlorate
Other cations	Yttrium perrhenate; Lanthnaum perrhenate
Related compounds	Rhenium(VII) oxide; Perrhenic acid
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Scandium perrhenate is an inorganic compound, with the chemical formula Sc(ReO₄)₃. Its thermal stability is lower than that of the corresponding compounds of the yttrium and lanthanum perrhenates.^[2]^[3]

Preparation and properties

Scandium perrhenate can be obtained by reacting perrhenic acid with scandium oxide.^[1] From the solution, the trihydrate of scandium perrhenate can be precipitated, which loses water at 50 °C to obtain Sc(ReO₄)₃·H₂O, and obtains the anhydrous form at 140 °C. Scandium oxide and rhenium(VII) oxide are formed at 550 °C.^[4]

Scandium perrhenate trihydrate is a crystal in the triclinic crystal system, with space group P1, a=7.333, b=7.985, c=20.825 Å; α=93.35, β=92.20, γ=97.42°.^[5]

Scandium perrhenate can crystallize with ammonium perrhenate in water to form NH₄Sc(ReO₄)₄·4H₂O.^[6]

References

^ ^a ^b Yi, Xianwu; et al. Series of Inorganic Chemistry - Vol 7. Scandium; Rare Earth Elements. Science Press. pp. 57. 3.9.6 Manganates and Rhenates of Scandium. (in Chinese)
^ Ovchinnikov, K. V.; Nikolaev, E. N.; Semenov, G. A. Mass-spectrometric study of the in vacuo thermal decomposition of scandium, yttrium, and lanthanum perrhenates(in Russian). Zhurnal Obshchei Khimii, 1983. 53 (5): 966-968. ISSN: 0044-460X.
^ "ВАЛЕНТИНА МИХАЙЛОВНА БЕРЕСТОВИЦКАЯ (1940-2017)". Журнал Общей Химии. 90 (8): 1151–1152. 2020-08-01. doi:10.31857/s0044460x20080016. ISSN 0044-460X. S2CID 242996070.
^ Komissarova, L. N.; Varfolomeev, M. B.; Ivanov, V. I.; Plyushchev, V. E. Preparation and properties of scandium perrhenates(in Russian). Doklady Akademii Nauk SSSR, 1965. 160 (3): 608-611. ISSN 0002-3264.
^ Khrustalev, V. N.; Varkholomeev, M. B.; Struchkov, Yu. T. Crystal structure of scandium perrhenate trihydrate(in Russian). Zhurnal Neorganicheskoi Khimii, 1997. 42 (11): 1779-1784. ISSN 0044-457X.
^ Khrustalev, V. N.; Varfolomeev, M. B.; Shamrai, N. B.; Struchkov, Yu. T. Synthesis and crystal structure of double ammonium indium and ammonium scandium perrhenate tetrahydrates(in Russian). Zhurnal Neorganicheskoi Khimii, 1996. 41 (4): 549-553. ISSN 0044-457X.

[wj-1] Yi, Xianwu; et al. Series of Inorganic Chemistry - Vol 7. Scandium; Rare Earth Elements. Science Press. pp. 57. 3.9.6 Manganates and Rhenates of Scandium. (in Chinese)

[2] Ovchinnikov, K. V.; Nikolaev, E. N.; Semenov, G. A. Mass-spectrometric study of the in vacuo thermal decomposition of scandium, yttrium, and lanthanum perrhenates(in Russian). Zhurnal Obshchei Khimii, 1983. 53 (5): 966-968. ISSN: 0044-460X.

[3] "ВАЛЕНТИНА МИХАЙЛОВНА БЕРЕСТОВИЦКАЯ (1940-2017)". Журнал Общей Химии. 90 (8): 1151–1152. 2020-08-01. doi:10.31857/s0044460x20080016. ISSN 0044-460X. S2CID 242996070.

[4] Komissarova, L. N.; Varfolomeev, M. B.; Ivanov, V. I.; Plyushchev, V. E. Preparation and properties of scandium perrhenates(in Russian). Doklady Akademii Nauk SSSR, 1965. 160 (3): 608-611. ISSN 0002-3264.

[5] Khrustalev, V. N.; Varkholomeev, M. B.; Struchkov, Yu. T. Crystal structure of scandium perrhenate trihydrate(in Russian). Zhurnal Neorganicheskoi Khimii, 1997. 42 (11): 1779-1784. ISSN 0044-457X.

[6] Khrustalev, V. N.; Varfolomeev, M. B.; Shamrai, N. B.; Struchkov, Yu. T. Synthesis and crystal structure of double ammonium indium and ammonium scandium perrhenate tetrahydrates(in Russian). Zhurnal Neorganicheskoi Khimii, 1996. 41 (4): 549-553. ISSN 0044-457X.

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